Bell & Gossett 5363-03N-12-003 Rolairtrol Air Separator 3″ NPT RL-3N

Description

Bell & Gossett Rolairtrol Air Separator — Model RL-3N (5363-03N-12-003)

The Bell & Gossett Rolairtrol RL-3N is a high-performance air separator engineered for commercial and industrial hydronic heating and cooling systems. By continuously removing entrained air from circulating water, the Rolairtrol protects pumps, coils, and other system components from the damaging effects of air binding — ensuring peak efficiency and long-term system reliability.

Key Features

• 3″ NPT connections for straightforward integration into existing piping systems
• Maximum flow capacity of 190 GPM to handle demanding commercial applications
• 125 PSIG maximum working pressure for safe, reliable operation in high-pressure hydronic systems
• Durable cast iron body construction for long service life and corrosion resistance in hydronic environments
• 304 stainless steel strainer provides superior filtration and resists corrosion for lasting performance
• Rolairtrol tangential inlet design induces a swirling action that efficiently separates air from the system water
• Collected air is automatically vented, keeping the system free of air pockets without manual intervention

Specifications

• SKU: 5363-03N-12-003
• Model: RL-3N
• Connection Size: 3″ NPT
• Maximum Flow Rate: 190 GPM
• Maximum Working Pressure: 125 PSIG
• Body Material: Cast Iron
• Strainer Material: 304 Stainless Steel

Applications

• Commercial hydronic heating and cooling systems
• Chilled water and hot water distribution systems
• Boiler plant piping and mechanical rooms
• Large-scale HVAC installations requiring reliable air elimination

Trust Bell & Gossett’s proven Rolairtrol technology to keep your hydronic system running at peak performance. The RL-3N is a go-to solution for mechanical contractors and engineers who demand dependable air separation in demanding applications.